baber/WOPTO huggingface dataset:
Patent GB-340243-A (GB)
Title: Improvements in the manufacture and production of azo dyestuffs containing chromium
IPC: C09B45/16
Filed: 1929-09-19
Abstract: Azo dyes, soluble chromium compounds of; lakes.-Azo dyestuffs containing chromium are obtained by treating with agents yielding chromium azo dyes of the type, aromatic amine of the benzene series containing no hydroxy or carboxy group in oosition to the diazotized amino group --> a 1-phenyl-3-methyl-5-pyrazolone carrying an o-hydroxy-carboxylic grouping in the phenyl residue. The products dye wool usually pure yellow to orange shades, fast to light, and have good equalizing properties, and are applicable also for printing on cotton and for the preparation of lakes.  The following examples are specified.  (1) The dyestuff m-aminobenzoic acid --> 1-(2'-hydroxy-3'-carboxy-5'-sulpho) phenyl-3-methyl-5-pyrazolone is boiled in aqueous solution for 3 hrs. under reflux with a chromium hydrate paste containing formic acid; the product dyes wool level greenish yellow shades fast to washing and fulling; similar products are obtainable by the use as diazo components of aniline and m-chloraniline.  (2) The dyestuff sulphanilic acid --> 1-(2'-hydroxy-3'-carboxy-5'-sulpho) phenyl-3-methyl-5-pyrazolone is heated in aqueous solution for 1 hr. under pressure at 110 DEG  C. with a similar chromium hydrate paste; the product dyes leather yellow shades fast to light; the chromium compound, similarly prepared, of the dyestuff sulphanilic acid --> 1-(2'-hydroxy-3'-carboxy) phenyl-3-methyl-5-pyrazolone is similar; chroming may also be effected with a salt of hexavalent chromium, e.g. sodium chromate.  (3) The dyestuff 4-aminosalicylic acid --> 1-(2'-hydroxy-3'-carboxy-5'-sulpho) phenyl-3-methyl-5-pyrazolone is heated for 3 hrs. on the water bath with a chromium hydrate paste containing formic acid; the product dyes leather fast orange shades and is applicable also for dyeing cotton.  (4) The dyestuff 2-chloro-4-toluidine --> 1-(2'-hydroxy-3'-carboxy-5'-sulpho) phenyl-3-methyl-5-pyrazolone is chromed as in (1); the product dyes wool yellow shades fast to light and washing.  (5) The dyestuff metanilic acid --> (2'-hydroxy-3'-carboxy-5'-sulpho) phenyl-3-methyl-5-pyrazolone is chromed as in (1); the product dyes wool greenish yellow shades fast to light.  Specification 26460/12 is referred to.  1-(2'-Hydroxy-3'-carboxy) phenyl-3-methyl-5-pyrazolone is prepared by condensing the hydrazine from 1-amino-2-hydroxybenzene-3-carboxylic acid with acetoacetic ester.
Patent GB-210400-A (GB)
Title: Improvements in collapsible typewriting machines
IPC: B41J3/36
Filed: 1923-11-12
Abstract: 210,400. James, R. W., (Remington Typewriter Co.). Nov. 12, 1923. Folding machines; shift-key actions; key locks.-A device comprising a lever actuated by a collapsable part of the machine, is provided for releasing the shift-locking key, and thereby permitting the shiftable member to return to the normal position, when the machine is collapsed; by ensuring the return of the shiftable member, the device prevents the machine from being damaged by the act of closing the cover. The machine shown in the Figure comprises (1) a verticallymovable frame 28, described in Specification 159,705, for raising and collapsing the type-levers 3, (2) a horizontally-shiftable carriage-bed 41 connected to an arm 61 on a rock-shaft 60 having arms 59 engaged by shift-key levers 54, (3) a locking-key lever 68 pivoted on one of the key-levers 54 and having a lug 70 for engaging a plate 78, and (4) a cover 81, adapted to be turned upwards on lugs 82, and having blocks 84 for engaging projections 85 on the carriage 50. The releasing- device consists of a lever 86, pivoted at 89 to the framework 2, and having a finger 91 adapted to engage a lug 75 on the locking-lever 68, and a finger 93 in the path of a pin 94 on one of the operating-links 26 for the frame 28. A guideyoke 92 on the lever 86 engages one of the keylevers 54. When the frame is depressed to collapse the type-levers, the pin rocks the lever 86, and if the lever 68 is locked, it is released, and then raised by a spring 72, the platen-carriage being thereupon restored by means of a spring 51 to the normal position. When the machine is collapsed, the finger 91 prevents effective operation of the locking-lever 68. Specification 220,061 is referred to.
Patent GB-187621-A (GB)
Title: Braking device acting upon the air for use in aeroplanes
IPC: B64C9/32
Filed: 1922-10-20
Abstract: 187,621. Soc. Anon. des Ateliers d'Aviation L. BrÚguet. Oct. 21, 1921, [Convention date]. Stopping ways; steering and balancing.-In order to reduce speed in landing, braking-members b normally contained within the fuselage are gradually protruded in to the extended position shown in full lines in Figs. 2 and 7. The braking-members comprise curved air-elements b supported by a framework of rods c pivoted at d. They are swung outwards by means of peripheral racks which engage with pinions f rotated through bevel-gearing from a central shaft g controlled by the pilot. Instead of bevel-gearing, cables and pulleys, or a lazy-tongs lever system, may be used as controlling-means. Similar braking-members may be mounted above and below the fusilage, if necessary. Drag-parachutes l, l<1> may also be released, as shown in Fig. 8. According to the Specification, as open to inspection under Sect. 91 (3) (a), the front and rear ends of the wing may be adjustably inclined towards the ground. This subject-matter does not appear in the Specification as accepted.
Patent GB-303941-A (GB)
Title: Improvements in die chucks for use in machines for embossing paper and the like
IPC: B44B5/02
Filed: 1927-10-27
Abstract: 303,941. Clark, E. W., and Wesley, H. Oct. 27, 1927. Printing and embossing surfaces.-The movable jaws 6, 7 in the chucks for machine for embossing &c. printing paper or the like are provided with tail-pieces at right angles to the jaws and adapted to move in channels in the base of the chuck. The chuck is formed with channels 9 of a depth equal to the thickness of the tail-pieces 6a so that any movement of the jaws in a direction other than that for clamping the dies is prevented. In a modification, the tail-pieces may slide in T-shaped slots.
Patent GB-616949-A (GB)
Title: Sound-box for gramophones
IPC: G11B17/16
Filed: 1946-09-25
Abstract: 616,949. Magazine gramophones. HANSEN, H. C. Sept. 25, 1946, No. 28611. Convention date, June 14, 1945. [Class 40 (ii)] In a magazine gramophone designed for playing both sides of the records the transducer 16 is rotated 180 degrees by means of a lever 26 which has a toothed sector 36 in engagement with a pinion 36 on the transducer 16, and which co-operates with abutments 30, 32 so that when the transducer-arm 18 is lowered to'play the underside of a record 14 the stylus 22 is automatically turned upwards. In an alternative construction, Fig. 5, the underside of the record 14b is played before being lowered and the transducer 16 is rotated by means of a cord 52, pulley 54 and a member 56 co-operating with a cam 62.
Patent GB-286796-A (GB)
Abstract: 286,796. Carpmael, W., (I. G. Farbenindustrie Akt.-Ges.). Dec. 13, 1926. Aralkylated fats and fatty acids ; sulphonic acids.-Fats and fatty acids aralkylated on the carbon atom are obtained by treating unsaturated fats or fatty acids with an aralkyl halogenide, preferably in the presence of a catalyst ; suitable catalysts are iron powder, zinc chloride, and aluminium chloride. The products are oily liquids which, when sulphonated, yield sulphonic acids suitable for use as wetting-agents in dyeing and printing and as substitutes for turkeyred oil. For example, the sulphonic acids may be used in preparing solutions of #-oxynaphthoic acid arylides. In an example, oleic acid and benzyl chloride are heated to about 150‹ C. in presence ofzinc chloride. The oily product is stirred with sulphuric acid monohydrate and is then sulphonated with chlorsulphonic acid in the cold, whereafter the sulphonated product is separated and purified and is finally isolated in the form of its sodium salt. Rape oil also may be treated in the same way.
Patent GB-703346-A (GB)
Title: Improvements in and relating to electrical communication systems comprising a loudspeaker and a microphone
Inventor: PARKER LESLIE KEARTON
IPC: H04M1/62
Filed: 1949-11-09
Abstract: 703,346. Loudspeaker sets. TELEPHONE MANUFACTURING CO., Ltd. Nov. 9, 1950 [Nov. 9, 1949], No. 28713/49. Class 40 (4) Acoustic reaction is minimized by arranging a microphone in a neutral zone where the effect of low frequency pressure waves from the front and rear surfaces of a loudspeaker balance out. The loudspeaker 11 of a desk set is placed behind an aperture 14 in a casing 10 and vibrations from the rear surface of the diaphragm pass through a tube 17, having a cross-sectioned area approximately equal to the diaphragm area, to a rear aperture 15. A further opening 27 in the top of the casing brings the neutral zone forward so that the microphone 13, the rear of which is entirely enclosed, can be mounted conveniently on top of the casing 10, through adjustable bolts 25 bonded to rubber members 24.
Patent GB-747582-A (GB)
Title: Improvements in or relating to fuel injection nozzles
IPC: F23D11/24
Filed: 1953-10-19
Abstract: 747.582. Fuel injection nozzles. PARKER APPLIANCE CO. Oct. 19, 1953 [April 27, 1953], No. 28715/53. Classes 7(2) and 7(3) [Also in Group XI] The outwardly opening valve 30 of a fuel injection nozzle has a primary bevelled surface 48, Fig. 2, seating against the outer edge of the fuel delivery orifice 14 and a secondary bevelled surface 49 upstream of and axially spaced from the primary surface. The surface 48 causes the fuel to be delivered initially as a wide-angle spray, the angle of the spray being reduced when the valve is opened sufficiently to bring ' the surface 49 adjacent the outer end of the orifice 14. The fuel injection nozzle is similar to that described in Specification 741,838. The valve stem 32 slides in a bore in a stationary member 27 and the valve is connected by a flexible steel rod 33 to a spring-loaded cylindrical member 17, the outer end of which forms a valve controlling the flow of fuel from the inlet pipe 6 to grooves 18 which lead into a chamber connected by whirl passages 25 to a swirl chamber 26 adjacent the delivery orifice 14. Further grooves (not shown) by-pass the valve 17 and deliver a small amount of fuel to an annular chamber 28 connected by helical passages 29 to the outlet chamber 26. A second fuel-supply passage 7 leads to a filter 12, the filtered fuel being delivered to grooves 40, 41, connected by radial passages 44 ... 46 to the bores in which the cylinder 17 and valve stem 32 slide. The filter comprises asbestos fibre 11 between layers of filter cloth 12, 13 and removes grit from the fuel used for lubricating the valve sliding surfaces. The conical surfaces 48, 49, on the valve 30 are separated by a cylindrical step 50 which helps the whirling fuel to break away from the valve. In Fig. 1 the valve 30 is provided with orifices 35 which vent the space between the cylinder 17 and the part 27 and in a modification, Fig. 7, the orifices 35 are replaced by an annular slit 58 opening into the conical surface 48. In a further modification, the cone angle of the surface 48 is less than that of the surface 49.
Patent GB-425016-A (GB)
Title: Improvements relating to mowers, reapers, or binders for crops
IPC: A01D63/04
Filed: 1934-10-10
Abstract: 425,016. Reaping, mowing, and harvesting machines. McFADZEAN, C. T., Kirkland Cottage, Maybole, Ayrshire. Oct. 10, 1934, No. 28959. [Class 6 (iii)] A main divider 5 carries a supplemental divider 6 upon which is detachably fitted, to project above the upper inclined edge 7 of the divider 6, a longitudinal reversible dividing knife 8. The knife has parallel straight longitudinal edges terminating in inclined ends forming four cutting edges. Elongated apertures or bolt holes permit the knife to be adjustably secured to the divider with any one of its cutting edges in operative position. The longitudinal edges of the knife may be slightly curved.
Patent GB-1015736-A (GB)
Title: Improvements in indicators
Inventor: EDWARDS HARRISON FERDINAND
IPC: G08B5/24
Filed: 1964-07-14
Abstract: 1,015,736. Visible signalling apparatus. SIMMONDS PRECISION PRODUCTS Inc. July 14, 1964, No. 28960/64. Heading G4F. A U-shaped frame 25 supports an electromagnet 34, 35, 36 and a non-magnetic spool 26 carrying a non-uniform magnetizable band 40 and indicia-bearing element 42 whereby energization of the coil 34 rotates the spool to one position from which it is restored to its original position on de-energization by a spring 37 secured at its end 38 to a pin 39 on the frame 25. Rotation of the spool is limited to 90 degrees by a pin 45 engaging a land 43. The spool 26 is preferably of resin, the band 40 of alloy metal and the spring 37 of phosphor bronze. The band 40 is saw-tooth-shaped.
Patent GB-1499615-A (GB)
Title: Blanks for the production of half thrust collars and a method of producing such collars
IPC: F16C17/04
Filed: 1976-07-13
Abstract: 1499615 Bearings KARL SCHMIDT GmbH 13 July 1976 [21 Aug 1975] 28980/76 Heading F2A A blank 1 for forming into one half of a thrust bearing collar is stamped or punched from a band or strip of sliding contact bearing material and has two portions 3 joined by a projecting portion 4 which is substantially V-shaped. The blank is such that it may be formed into the half collar without deformation of the bearing surfaces, and each side of the blank has an identical contour so that the blanks may be stamped from the strip without waste of material. On forming into the half collar, the blank is bent along the V-shaped projection so that the two portions abut, and the projecting portion is bent clear of the bearing surface.
Patent GB-298536-A (GB)
Title: Apparatus for separately or jointly unlocking housed cattle
IPC: A01K1/062
Filed: 1928-10-09
Abstract: 298,536. Berendse, H. Oct. 10, 1927, [Convention date]. Cattle stalls.-A securing yoke 1, 2 for cattlesheds is fastened to a beam 9 and to the floor bv means of chains 8, 7 and has one half 1 hinged at the upper end to a member 4, while the other half 2 catches in a groove 6 by means of a pin 5. The member 4 carries a pivoted lever 10 which normally lies across the groove 6 to lock the pin 5 in position, and the outer end of the lever is connected by a chain 12 to a crank 13 on a longitudinal bar 14, to which all the similar levers are connected. On turning the bar 14 by means of the handle 15, the lever 10 unlocks the pin 5, and then strikes a projection 16, so that further movement tilts the member 4 sufficiently to allow the pin 5 to drop out of the groove 6. A spring may be provided for holding the lever 10 in the locking position. In a modification, the groove 6 is closed by a spring-controlled pawl which is withdrawn by means of a bell-crank lever carried by the member 4.
Patent GB-464767-A (GB)
Title: Improvements in electrical switchgear
IPC: H02B11/28
Filed: 1935-10-21
Abstract: 464,767. Switchgear structures. WHITEHEAD, G. E., and WHITEHEAD'S ELECTRICAL INVENTIONS, Ltd. Oct. 21, 1935, No. 29053. [Class 38 (v)] Switchgear, particularly for voltages up to 11 kv., comprises an oil circuit-breaker 1 of the downwardly movable bridge type 8 located at the front of the gear, with isolating switches 13 disposed above the breaker 1 and connecting the terminals of the latter with conductors 16, 20 in a transformer chamber 3, the conductor 20 extending into a cable entry box 4 at the rear of the gear, and conductor 16 being connected by a vertical conductor 17 behind the breaker 1 to a busbar within a chamber 5 located substantially underneath the breaker. A separate unit may be provided for each pole of the system, or the unit may be constructed as a multi-pole gear, the drawing showing one phase of a three-phase unit. The breaker comprises a lowerable tank 6, and fixed contacts 10, which may be arranged as described in Specification 464,643 and are carried on a member 12, which is lowerable to isolate the 'breaker 1 by withdrawing the plug contacts 13 from fixed socket contacts 14, 15 preferably arranged as described in Specification 409,085. Busbar connector 16 and the upper ends of contacts 14, 15 are embedded in solid, oilresisting insulation located in chamber 3 up to the level 26, whereas the part of the chamber 3 housing the cable-connector 20, in which the current transformer 21 is incorporated, contains oil. Conductor 17 is shrouded in insulation 18 at the upper part, and the bare lower end is adapted to be connected by socket contacts 32, 34 and a metal sleeve 31 with a plug contact 35 on the busbar connector 28. Sleeve 31 is shrouded in insulation 36 and the sleeves 31, 36 of all phases are carried in a frame 37 which is movable upwards by screwed rods and bevel gearing to disconnect 34 from 35 and, by a further movement, to bring the upper end of sleeve 31 into engagement with a tubular contact 38 which is earthed at 39 to the casing 40. Chamber 5 is preferably filled with solid insulation. Specifications 286,429 and 322,094, [both in Class 38 (v)], are referred to, and the Provisional Specification refers also to Specification 392,926.
Patent GB-336081-A (GB)
Title: Improvements in hoeing or cultivating machines
IPC: A01B35/30
Filed: 1929-09-25
Abstract: 336,081. Krause, M. Sept. 25, 1929. Implements with adjustable tool frames; adj<u>stin and lifting parts; travelling gear; balance weights; reversing at headlands.-In a machine for hoeing or cultivating the soil between rows of plants, in which the steering-shaft is jointed and so connected to the steering-wheels and to the tool-carrying frame that it can be used both for deflecting the wheels and for positioning the working tools, the steering-shaft is divided into two parts connected by a universal joint which coincides with the pivot of a channelled lever through which the outer part of the shaft passes, so that the shaft can be rotated and the lever deflected by means of a handle on the shaft. The main frame a is supported by cross-bars b, c.. on four wheels, the steering-wheels k being mounted on short axles secured to heads t mounted on vertical pivots s. Short arms u on the heads s are connected together by a rod v, and longer arms r are connected by rods q to a two-armed lever on a steering-lever on a shaft i. The outer part of the universally-jointed steering- shaft i passes through the channelled lever f and is adapted to be partially rotated to steer the wheels k, and also to be deflected with the Lever f about a pivot m for moving the tool frame e laterally. The shaft i is provided with a handle w, and the lever f passes through a U-shaped bracket g on the tool frame e, which is movably held in eyelets d on the bar c. The frame e may be balanced by adjustable weights y and may be raised by means of a lever h linked to a doublearmed lever z connected to the frame e. The lever h is adapted to engage a retaining hook x. The machine is reversed at the ends of the field by turning about one of the rear wheels, the steering-wheels being set so as to be tangential to the different paths in which they move.
Patent GB-1432712-A (GB)
Title: Line printer with matrix printing head
IPC: B41J25/316
Filed: 1974-07-01
Abstract: 1432712 Selective printing NCR CORP 1 July 1974 [23 July 1973] 29089/74 Heading B6F A line printer has needle printing head 14 partly pivotally mounted on a carriage 12 traversing a platen 10, the pivotal mounting permitting for example viewing of the printed line. As shown the carriage 12 slides on guide rail 18 and is driven by rotating screw acting on threaded carriage plate 28. The head 14 comprises a group of actuators 122 each associated with a needle, the needles being guided by pivotally mounted housing 34. A one piece hinge 40 has two feet (only 48 visible) on the carriage 12 and grooves in the feet defining the hinging axis. Solenoid 92, when energized acts on link 74 to move the housing 34 to the phantom (non-printing) position. Spring 66 acts to return the housing 34 and limiting device 68 defines the limit of this spring return. Bar 24 in a slot in block 22 acts to align the carriage 12 with the platen 10.
Patent GB-281243-A (GB)
IPC: H02P9/10
Filed: 1927-11-01
Abstract: 281,243. British Thomson-Houston Co., Ltd., (Assignees of Nickle, C. A.). Nov. 24, 1926, [Convention date]. Regulation, automatic, of high-voltage transmission systems &c.-A vibrating regulator with two co-operating contacts effecting regulation of a given characteristic, e.g. voltage is provided with further means responsive to the characteristic regulated adapted to increase the rapidity of response to a change in the characteristic. The invention is principally applicable to transmission systems including synchronous machines and permits of an increase in the maximum power transmissible or steady-state limit. The moving system of the regulator possesses a higher natural frequency and oscillation as compared with that of the system in response to a disturbance (which is of the order of 1 second) and the arrangement according to the invention effects a change on the relative position of the regulator contacts which is a definite function of the regulated characteristic and is substantially simultaneous with a change in the characteristic so that regulation is effected in one vibration of the contacts. Three arrangements are described. In Fig. 1 an additional line-voltage coil 9 assists the excitervoltage and coil 8 so that notwithstanding the dashpot 20 the relative positions of contacts 14, 18 are changed immediately the voltage changes and to an extent which is a function of the change. In Fig. 2 the voltage coil 15 varies the compression of a spring 29 between two parts of its core so that a like result is obtained, and in Fig. 3 an additional line-voltage coil 33 acts upon a blade spring on the lever which carries the contact 18. A compounding coil 10 opposing the exciter-voltage coil may be added as shown in Fig. 1.
Patent GB-700587-A (GB)
Title: Improvements in or relating to velocipedes
IPC: B62H7/00
Filed: 1951-12-12
Abstract: 700,587. Children's vehicles. ABERDALE CYCLE CO., Ltd., and LEVY, J. Dec. 12, 1951, No. 29153/51. Classes 136(1) and 136(3) [Also in Group XXXII] A tricycle, pedal motor car &c. having laterally spaced wheels may be controlled by an extensible handle 13, Fig. 1, pivoted at one end to the tricycle &c. for angular displacement from a collapsed and stowed, substantially vertical downwardly-depending position adjacent the cycle to an extended position for use. The handle is pivoted to a member 12a hinged at 11 to a bracket 8 secured to the vertical frame member 1 by a bolt 6 securing the saddle pillar 5. A projection 16 on the handle engages a stop 17 on the frame in the stowed position. The handle comprises telescopic members 14, 15, Fig. 3; the former carrying a spring 23 secured between a sleeve 22 and a ring 24 abutting a stop 25, and the latter carrying the handle grip 18a and end stops 26, 27. When the handle is extended, the stop 25 passes through a slot in stop 27 and is rotated to engage a recess 29 where it is held by pressure of the spring. In the stowed position, the spring acts between stops 26 and 25 to hold the projection 16 and stop 17 in engagement. Specification 628,992 is referred to.